There's a hint in the problem statement. "How long...?" You should end with a TIME.lrivetz said:If the speed of light is 3.00 x 10 ^ 8 m/sec, how long does it take light to travel 2.29 x 10 ^ 11 m, the distance from the sun to the Mars? = 6.87 x 10 ^ 19 m/sec
tkhunny said:There's a hint in the problem statement. "How long...?" You should end with a TIME.lrivetz said:If the speed of light is 3.00 x 10 ^ 8 m/sec, how long does it take light to travel 2.29 x 10 ^ 11 m, the distance from the sun to the Mars? = 6.87 x 10 ^ 19 m/sec
(2.29 * 10^11 m)/(3.00 x 10 ^ 8 m/sec) = ?? seconds
tkhunny said:Good start.
I think you have the arithmetic, but you seem to have lost your units.
Post those like THIS: (1/3)^(-4) ; (that's 1/3 to the power minus 4)lrivetz said:(1/3) neg 4 = 1/81
(1/2) neg 2 = 1/4
Still no.lrivetz said:7.63 x 10 ^ 2 m/sec